Shuttle bobbin-holder.



' L. E. CHASE.

SHUTTLE BOBBIN HOLDER. APPLICATION FILED MAY 29. 1915.

1 ,236Q052. Patented Aug. 7, 1917.

IINTTE STATES PAT ICE.

LOUIS E. CHASE, OF WILKINSONVILLE, MASSACHUSETTS.

SHUTTLE BOBBIN-HOLDER.

Application filed May 29, 1915.

To all whom it may concern:

Be it known that I, LOUIS E. CHASE, a citizen of the United States, residing at VVilkinsonville, in the county of Worcester and State of Massachusetts, have invented cer' tain new and useful Improvements in Shuttle Bobbin-Holders, of which the following is a specification.

My invention relates to a shuttle bobbin holder, and to that class of bobbin holders which are used in shuttles in automatic looms, more particularly of the Northrop type, so-termed, and in which a new bobbin is automatically supplied from the bobbin magazine or reservoir to take the place of the substantially exhausted bobbin in the active shuttle. The shuttle has a central longitudinal opening therethrough, and the substantially exhausted bobbin is forced out of the bobbin holder, through said opening in the shuttle, by the insertion of a new bobbin with a full supply of filling thereon. The bobbins have circumferential ribbed heads, which are adapted to engage with the grooves in the two holding jaws of the bobbin holder, all as will be understood by those skilled in the art.

The object of my invention is to provide an improved bobbin holder, adapted to be used in shuttles of the class above referred to. The bobbin holder is detachable, and may be placed in the shuttle and secured therein by a transverse pin, and may be withdrawn from the shuttle by removing said pin.

It has been customary heretofore to make the bobbin holder, of the type referred to, of hardened steel, and it has been found in practice, that by reason of the great jar and vibration to which the bobbin holder is subject, when it is in use in a shuttle in a fast operating automatic loom, that the hardened metal will crystallize, and one or both of the holding jaws will break, near their point of connection with the solid end of the bobbin holder.

In my improved construction of a bobbin holder, of the type referred to, the two holding jaws or arms are made separate from each other, and are made of hardened steel in the ordinary way. Combined with the two holding jaws of hardened steel, is a block of softer metal, preferably iron, which is inserted between the two inwardly curved ends of the holding jaws and secured thereto, preferably by welding. By this con- Specification of Letters Patent.

Patented Au. 7, 1917.

Serial No. 31,157.

struction of the bobbin holder, the jar and vibration to which the steel holding jawsor arms of the bobbin holder is subject when it is in use in a loom, is taken up and absorbed by the block of soft metal between the ends of said jaws, and consequently said aws will not crystallize and break, as has been customary heretofore.

My invention consists in certain novel features of construction of my improved bobbin holder as will be hereinafter fully described.

Referring to the drawing Figure 1 is a top view of my bobbin holder, detached from a shuttle.

Fig. 2 is a section, on line 2, 2, Fig. 1, looking in the direction of arrow a, same figure.

Fig. 3 is a section, on line 3, 3, Fig. 1, looking in the direction of arrow 5, same figure, and,

Fig. 4 shows the three parts of which my bobbin holder is made, separated from each other.

In the accompanying drawing, the bobbin holder consists of two holding jaws or arms 1, which are made separate preferably of hardened steel and in the shape shown, with transverse recesses or grooves l on their inner surface, at their free ends.

Combined with the two holding jaws or arms 1, made of hardened steel, is a third member or block 2, of soft metal, preferably iron, or any suitable metal which is softer than the metal of which the jaws 1 are made.

In making the complete bobbin holder, the member or block 2, which is made separate from the two holding jaws 1, is placed be-' tween the two inner ends of the holding jaws or arms 1, as shown in Fig. 4, and the parts are secured together, preferably by welding, to securely attach the arms 1 to the block 2, as shown in Fig. 1. The end of the bobbin holder may be rounded, as shown in Fig. 1, preferably after the parts are secured together.

A transverse opening 3 is made through the arms 1 and the block 2, for the insertion of the holding pin.

It is not new to make a bobbin holder, of the type referred to, in two, or more separate parts secured together, but it is new to combine with the two holding jaws or arms of steel, made separate, a third member of iron, or metal softer than the metal in the holding jaws, and made separate therefrom, and to which said jaws are of softer metal between said jaws or arms welded and this is the important feature of and to which said jaws or arms are welded.

my invention. 2. A shuttle bobbin holder consisting of It will be understood that the details of two steel holding jaws or arms, and a block 5 5 construction of my improved bobbin holder of iron between said jaws or arms and to majI be varied if desireg. which said aws or arms are welded.

I- avin thus describe my invention what I claim 5s new and desire to secure bj Let LOUIS CHASE ters Patent is Witnesses:

10 1. A shuttle bobbin holder consisting of JOHN C. DEWEY, two steel holding jaws or arms, and a block MINNA HAAS.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. C. 

